What is Devin Barzallo's NPI number?

Devin Barzallo's National Provider Identifier (NPI) is 1598524506, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Devin Barzallo's specialty?

Devin Barzallo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Devin Barzallo located?

Devin Barzallo's practice location on file with NPPES is 3134 N Clark St, Chicago, IL 60657-4414.

What is Devin Barzallo's phone number?

The practice phone number listed in the NPPES registry for Devin Barzallo is (312) 766-4949.

Is Devin Barzallo's NPI active?

Yes — Devin Barzallo's NPI (1598524506) is active in the NPPES registry as of the last update on 2025-06-17.

IndividualActive

Devin Barzallo, MD

NPI 1598524506 · Internal Medicine Physician · Chicago, IL

Devin Barzallo, MD is a Internal Medicine Physician provider in Chicago, IL (NPI 1598524506).

Provider details

NPI number: 1598524506
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: 125.086369 (IL)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense 125.086369 (IL)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(57/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
2 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

3134 N Clark St

Chicago, IL 60657-4414

Phone: (312) 766-4949

Street-level locationGet directions

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Mailing address